The history that inspired the Curtiss Hawk II reproduction project harkens back to 1931, when Ernst Udet, Germany's second-highest ranking ace of WWI (second only to the Red Baron, Manfred von ...

Ziolkowski said the improving red tail population is also likely because of a reduction of deadly DDT in the environment, a chemical that in the 1960s was hurting hawk reproduction.

Ziolkowski said the improving red tail population is also likely because of a reduction of deadly DDT in the environment, a chemical that in the 1960s was hurting hawk reproduction.